Mansour Fazeli Rostampour; Seyyed Gholamreza Moosavi; Hasan Romenjani; shahram mehri; Abouzar Abouzari
Abstract
Due to hot and dry climates of South Khorasan province, it is quite vital to choose the suitable crop and planting date. In this condition, pearl millet nutrifeed hybrid (Pennisetum americanum var. nutrifeed) can be a valuable forage in rotation with other plants. This experiment is carried out in 2017-2018 ...
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Due to hot and dry climates of South Khorasan province, it is quite vital to choose the suitable crop and planting date. In this condition, pearl millet nutrifeed hybrid (Pennisetum americanum var. nutrifeed) can be a valuable forage in rotation with other plants. This experiment is carried out in 2017-2018 in strip split plots design in time in Azad University research field, Birjand. The treatments include 4 sowing dates (April 8, April 28, May 18, and June 7), 3 irrigation regimes (providing 100%, 75%, and 50% of the plant’s water needs based on the plant potential evatranspiration), and two cuttings in a completely random blocks design with three replications. The highest water use efficiency is observed when providing 50% of water needs on April 8, along with the first and second cuttings. Following the delay in planting date from April 8 to June 7, the forage dry matter yield of millet decreases by 24.4% when it is supplied with 100% of its water needs. This decrease is 24.2 and 46.9, in case of supplying 75% and 50% of water needs, respectively. Therefore, by supplying 75% of pearl millet water needs and planting it on April 8, with a 25% reserve of water consumption, the dry matter yield is acceptable.